Safety razor



June 25, 1946. L. c. GUERTIN SAFETY RAZOR Filed Sept. l5, 1944 Patented June 25, 1946 UNITED STATES PATENT OFFICE SAFETY RAZOR Louis C. Guertin, Worcester, Mass.

Application September 15, 1944, Serial No. 554,267

6 Claims.

This invention relates to safety razors.

Objects of the invention include the .provision of a relatively uncomplicated and easily manufactured razor of the safety type in which the upper or movable safety razor blade clamping jaw is pivotally secured to a rod, the latter being longitudinally movable in a sleeve or barrel comprising the handle of the razor and to which is attached the lower or fixed safety razor blade clamping jaw; and the provision of a safety razor as above stated wherein the barrel or sleeve is slotted to accommodate a pivoted handle member secured to the lower end of the rod, said handle member being used to move the rod relatively to the barrel and also having the double function of locking the rod to theV barrel in operative position for shaving.

Further objects of the invention reside in the provision of a safety razor blade having a diamond shaped opening therein for the reception of a like .projection on the fixed blade clamping Jaw.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawing, in which:

Fig. l is a View in elevation illustrating the invention;

Fig. 2 is a longitudinal section through the razor;

Fig. 3 is a partial view in elevation looking in the direction of the arrows 3-3 of Fig. 1; and

Fig. 4 is a view of the razor blade;

Fig. 5 is a plan View of the lower blade clamping jaw.

This invention is designed to provide an easily operable safety razor in which the movable blade clamping jaw is manually moved and swung to a position for changing razor blades, the construction of the razor being relatively simple and rugged and being sure in action and avoiding gumming of the parts.

As shown in the drawing, the razor comprises a sleeve or barrel I0 which forms the handle for the razor and at one end of which is secured a fixed element I2 which is the lower razor blade clamping jaw. The barrel or sleeve I0 is provided with a slot I4 which starts at the end thereof opposite from the jaw I2 and extends longitudinally thereof to a point intermediate the ends of the barrel where it extends at an angle circumferentially as shown at I6.

A rod I8 is slidably mounted in the barrel Il) and at one end thereof there is pivotally secured thereto the upper blade clamping jaw 20 as by a pin or other means 22. At its opposite end, the rod I8 is provided with a screw threaded stud 24 pivoted to the rod I8 on a pin 26. A nut 28 is threaded on the stud 24 and this nut will of course pivot with the stud 24 from a position parallel with the rod as shown in Fig. 2 to a position at right angles thereto as in Fig. 3.

In the operation of the razor, it may be assumed that a. blade 30 is clamped between the upper blade clamping jaw 20 and the lower jaw I2. In this position, rod I8 holds the upper movable jaw 20 in position by reason of the fact that nut 28 is turned up on its screw threaded stud 24 so as to frictionally engage the extreme lower end of the barrel I0.

When it is desired to change a blade, nut 28 is backed off slightly on stud 24 so as to free the nut from the barrel. Then the stud together with its nut 28 is swung up at right angles to rod I8 to a position in the slot I4, whereupon the rod may be easily manually raised by reason of the fact that the screw threaded stud 24 rides in the slot to the Fig. 3` position, where the nut 28, acting as a handle, moves into one or the other of the laterally extending branches I6 of the slot I4 whereby the rod will be held in its extended position as shown in dotted lines.

As the rod moves upwardly in the barrel the upper blade clamping jaw 2U will be overbalanced and swung down and when the rod is turned to the Fig. 3 position the jaw 20 will move theren with so that the jaw 20 is aligned with the usual aperture in the razor blade. The blade may now easily be removed and a new blade inserted, whereupon the reverse action takes place and the nut 28 acting as a handle is brought downwardly to its original position as shown in Fig.

2 and tightened up to secure the parts in position.

The razor blade used in the present invention is shown in Fig. 4 and is provided with a diamond shaped opening 32 which will fit a like boss 34 on the xed jaw I2, boss 34 entering into a complementary depression. 36 on the movable blade clamping jaw 20.

It will be seen that this invention provides a fool-proof razor which will always be easily operated because of the fact that it does not depend on springs, cams, or other devices which may become gummed with soap. Since the razor is manually operated it can always be worked and cannot become jammed. Also the device is relatively uncomplicated and may be cheaply and easily manufactured.

Having thus described my invention and the 3 advantages thereofaI do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

l. A safety razor comprising a barrel, a rod slidable therein, a fixed jaw on the barrel, a jaw on the rod for selective disposition to clamp a blade or to release the same, a pivoted handle for moving the rod, said handle including means to nx the rod and barrel together in blade clamping position of the jaws, said barrel having a slot, said pivoted handle riding in the slot to move the rod. y

2. Safety razor as recited in claim 1 wherein said slot has a transverse extension to receive the pivoted handle in blade releasing position to turn the jaw on the rod.

3. Safety razor comprising a barrel, a longitudinally slidable rod in the barrel, a blade clamping jaw on each of the rod and barrel, a slot in' the barrel, a pivoted clamp to fix the rod to the barrel, said clamp being guided in said slot when the rod is free of the barrel and forming a handhold for sliding the rod. I

4. Safety razor as recited in claim 3 wherein said clamp comprises a pin pivoted to the rod,

.4 and a member movable on the pin to frictionally engage the barrel at the end thereof.

5. Safety razor comprising a slotted barrel, a rod slidable in the barrel, a pin pivoted to the rod and adapted to be moved into alignment with the rod to abut the end of the barrel or selectively at an angle thereto into the slot, a nut turnable on the pin to clamp the rod to the barrel when the rod and pin are aligned and to operate as a handle to move the -pin into and along the slot when the rod is free of the barrel, and blade clamping members on the barrel and rod.

6. Safety razor comprising a barrel, a blade clamping member xed thereto, a slidable rod in the barrel, a pivoted blade clamping member on the rod, a slot in the barrel, a pivoted handle on the rod, said handle comprising a threaded pin and a nut thereon, said nut being effective to engage the end of the barrel to fix the rod and barrel together when tightened upon the pin, and to run the pin in the slot to be guided therein to move the rod to open position of the clamping members.

LOUIS C. GUERTIN. 

